199449-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199449-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 199449-97:
(8*1)+(7*9)+(6*9)+(5*4)+(4*4)+(3*9)+(2*9)+(1*7)=213
213 % 10 = 3
So 199449-97-3 is a valid CAS Registry Number.